http://www-math.umd.edu/research/seminars.html http://www-math.umd.edu/research/seminars.html Mon, 09 Sep 2024 12:30:00 EDT Where: Kirwan Hall (MTH) 1310
Speaker: Radu Balan (UMD) -

]]> http://www-math.umd.edu/research/seminars.html Mon, 16 Sep 2024 13:00:00 EDT Where: Kirwan Hall (MTH) 1310
Speaker: Revati Jadhav (UMD) -
Abstract: In this talk, we define the Zak transform and examine some of its properties. In particular, the Zak transform may be used to analyze Gabor systems. We will show how it may be used to determine whether a critical density Gabor system is complete, a frame, a Riesz basis, an orthonormal basis or a Bessel sequence.
]]> http://www-math.umd.edu/research/seminars.html Mon, 23 Sep 2024 13:00:00 EDT Where: Kirwan Hall (MTH) 1310
Speaker: Revati Jadhav (UMD) -
Abstract: In this talk, we define the Zak transform and examine some of its properties. In particular, the Zak transform may be used to analyze Gabor systems. We will show how it may be used to determine whether a critical density Gabor system is complete, a frame, a Riesz basis, an orthonormal basis or a Bessel sequence.
]]> http://www-math.umd.edu/research/seminars.html Mon, 30 Sep 2024 13:00:00 EDT Where: Kirwan Hall (MTH) 1310
Speaker: Matthias Wellershoff (UMD) -
Abstract: Stability of sorting based embeddings
Abstract: Consider a finite group acting isometrically on a real inner product space. We show that sorting based embeddings, that are obtained by applying linear maps to invariant maps based on sorting coorbits, satisfy a bi-Lipschitz condition if and only if they separate orbits.
]]> http://www-math.umd.edu/research/seminars.html Mon, 07 Oct 2024 13:00:00 EDT Where: Kirwan Hall (MTH) 1310
Speaker: Matthias Wellershoff (UMD) -
Abstract: Stability of sorting based embeddings
Abstract: Consider a finite group acting isometrically on a real inner product space. We show that sorting based embeddings, that are obtained by applying linear maps to invariant maps based on sorting coorbits, satisfy a bi-Lipschitz condition if and only if they separate orbits.
]]> http://www-math.umd.edu/research/seminars.html Mon, 14 Oct 2024 13:00:00 EDT Where: Kirwan Hall (Math) 1310
Speaker: Matthias Wellershoff (UMD) -
Abstract: Consider a finite group acting isometrically on a real inner product space. We show that sorting based embeddings,
that are obtained by applying linear maps to invariant maps based on sorting coorbits, satisfy a bi-Lipschitz condition
if and only if they separate orbits.
]]> http://www-math.umd.edu/research/seminars.html Mon, 21 Oct 2024 13:00:00 EDT Where: Kirwan Hall 1310
Speaker: Matthias Wellershoff (UMD) -
Abstract: Consider a finite group acting isometrically on a real inner product space. We show that sorting based embeddings, that are obtained by applying linear maps to invariant maps based on sorting coorbits, satisfy a bi-Lipschitz condition if and only if they separate orbits.
]]> http://www-math.umd.edu/research/seminars.html Mon, 04 Nov 2024 13:00:00 EST Where: Kirwan Hall 1310
Speaker: Revati Jadhav (UMD) -
Abstract: In this talk, we will show how a vector valued Zak transform may be used to analyze a rationally oversampled Gabor system (that is, ab is a rational number). The representation due to Zibulski and Zeevi using the Zak transform of the Gabor frame operator gives us a characterization of when it is bounded and invertible.
]]> http://www-math.umd.edu/research/seminars.html Mon, 11 Nov 2024 13:00:00 EST Where: Kirwan Hall 1310
Speaker: Revati Jadhav (UMD) -
Abstract: In this talk, we continue analysis of vector valued Zak transform for rationally oversampled Gabor system (that is, ab is a rational number). The representation due to Zibulski and Zeevi using the Zak transform of the Gabor frame operator gives us a characterization of when it is bounded and invertible.
]]>